We have used the adapter in the past. Now we have a new one and installed all the driver and p2 driver. The card will not mount on my desktop. I talked to dual adapter and we reloaded the p2 drives. It will mount on restart, but if I eject the card in put another in it will not mount.
I also tried the drives from Panasonic web site.
I don't have a clue what is going on.
I don't use a Dual Adapter, but from your description, it sounds like the new one you purchased is faulty. You've already reinstalled the drivers, and the previous one worked fine, so I'd return and replace the new D.A. (assuming your computer and everything else is the same).
I just had a similar problem although my dual adapter stopped mounting all together. After talking with Dual Systems they said I needed a new adapter. Unfortunately it's 14 months old, so Dual Systems will not swap it out. I love it when products die as soon as the warranty is over. Hopefully yours is less than a year old.
Anyone know of another adapter that will work on a Macbook Pro and P2 cards? I would hate to give Dual Systems more money.